Cygwin: pipe_data_available: drop special casing select

After 11a84cc757ef ("Cygwin: fix SSH hangs"), select returns
writability if any number of bytes are left in the buffer.
Thus, the reason for pipe_data_available() to return PIPE_BUF
when called from select() is gone, and we can drop special casing
select().

So together with 11a84cc757ef ("Cygwin: fix SSH hangs"), this
patch essentially reverts 555afcb2f3a6 ("Cygwin: select: set pipe
writable only if PIPE_BUF bytes left")

Rather than reverting the flag parameter to a bool, keep a mode
argument set to PDA_READ or PDA_WRITE.  If we can't evaluate
the number of bytes left, just return 1 to select(), as for any
other caller.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

0 files changed, 0 insertions, 0 deletions